CN109185238B - A kind of noise abatement formula bladeless fan structure - Google Patents
A kind of noise abatement formula bladeless fan structure Download PDFInfo
- Publication number
- CN109185238B CN109185238B CN201811379557.5A CN201811379557A CN109185238B CN 109185238 B CN109185238 B CN 109185238B CN 201811379557 A CN201811379557 A CN 201811379557A CN 109185238 B CN109185238 B CN 109185238B
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- runner
- shell
- hood
- raised line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
- F04F5/461—Adjustable nozzles
Abstract
The present invention relates to fan technology fields, disclose a kind of noise abatement formula bladeless fan structure, including pedestal and shell, connecting tube is equipped between the both ends of shell, it is equipped with C-shaped runner in shell, jet gap is equipped at the inner wall of shell, the intermediate position of C-shaped runner is equipped with first partition, second partition is equipped in connecting tube, the space in connecting tube is separated into upper cavity, lower chamber by second partition；The outside of connecting tube is equipped with connector sleeve, it is located at left and right sides of connecting tube in connector sleeve and is equipped with isolation raised line, raised line is isolated, the space in connector sleeve is separated into upper runner, lower flow channel, the upside of connecting tube is equipped with the upper long slot hole for being connected to upper runner and upper cavity, the downside of connecting tube is equipped with the lower long slot hole for being connected to lower flow channel and lower chamber, the right side of connecting tube is equipped with hood, and motor, impeller are equipped in hood, and the rear end of hood is equipped with several air inlets.The present invention is with noise is small, can easily adjust the beneficial effect of air outlet angle.
Description
Technical field
The present invention relates to fan technology field more particularly to a kind of noise abatement formula bladeless fan structures.
Background technique
Traditional fan generally includes motor and blade, and for blade in cage, cage allows air to pass through, and can prevent outer
Boundary's object and blade contact, play the role of security protection.However the wind of this fan blowing is intermittent discontinuous, uneven
, after long-time blower fan, it will lead to headache, and there is also security risks for this kind of fan itself, such as children are due to good
Odd and finger is protruded into cage and contacts blade and causes to damage, extraneous foreign matter, which can also enter in cage, leads to breakage etc..For
The security performance of fan is improved, present bladeless fan is more more and more universal, and bladeless fan also makes air increase back machine, it can be produced from
So lasting cool breeze, it is by air-flow enhancing several times after drawing air into engine foundation later again by arranging at annular gap
Out, so that the air-flow in annular ring be driven to flow to form lasting, uniform wind.However bladeless fan is there is also some disadvantages,
Such as bladeless fan in order to guarantee wind-force, need to compress after sucking outside air, therefore bladeless fan inner air
Flow velocity is very big, and turbulent flow etc. occurs between air causes pneumatic noise larger, especially in sleeping at night in use, the noise of air-flow not
Conducive to sleep.
Summary of the invention
The present invention provides a kind of noise abatement formula without leaf to solve the above problem existing for bladeless fan in the prior art
Air-flow inside bladeless fan is separated into two individual flow paths by fan structure, thus weaken the turbulent flow between air-flow,
The noise of the interaction such as flow-disturbing and generation, is especially suitable for using when nighttime sleep.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of noise abatement formula bladeless fan structure, including pedestal and shell, the shell is integrally in C-shaped configuration, shell
It is equipped with connecting tube between both ends, C-shaped runner is equipped in the shell, is equipped with the spray being connected to C-shaped runner at the inner wall of shell
The intermediate position in gas gap, C-shaped runner is equipped with first partition, and C-shaped runner is separated into left runner, right stream by the first partition
Road, the connecting tube is interior to be equipped with second partition, and the space in connecting tube is separated into upper cavity, lower chamber by the second partition,
The left end of the upper cavity is connected to left runner, and the right end closing of upper cavity, the right end of the lower chamber is connected to right runner, under
It closes the left end of cavity；The outside of the connecting tube is equipped with connector sleeve, and the left and right sides that connecting tube is located in the connector sleeve is equal
Equipped with isolation raised line, the space in connector sleeve is separated into upper runner, lower flow channel by isolation raised line, and the upside of connecting tube, which is equipped with, to be used for
It is connected to the upper long slot hole of upper runner and upper cavity, the downside of the connecting tube is equipped with the lower length for being connected to lower flow channel and lower chamber
Slot, the right side of the connecting tube are equipped with hood, are equipped with motor, impeller in the hood, the rear end of hood be equipped with it is several into
Stomata, upper runner, lower flow channel right end be connected to hood.In use, motor impeller rotates, extraneous air is from hood
After the air inlet of rear end enters, by the compression of impeller, air-flow is divided into two-way, and upper road air-flow passes sequentially through upper runner, upper elongated slot
It is sprayed after hole, upper cavity, left runner from jet gap location, lower road air-flow passes sequentially through lower flow channel, lower long slot hole, lower chamber, the right side
It is sprayed after runner from jet gap location, mutual turbulent flow, the flow-disturbing so as to weaken between air-flow act on and bring noise, whole
Noise is smaller, is very suitable to nighttime sleep use.
Preferably, it is described isolation raised line top surface be cambered surface, the outer wall of the connecting tube be placed in two isolation raised lines it
Between and around the cambered surface rotation of isolation raised line, the outer wall of the connecting tube is located at the two sides of upper long slot hole equipped with upper limit raised line,
The two sides that the outer wall of connecting tube is located at lower long slot hole are equipped with lower limit raised line.The angle of the adjustable shell of this kind of structure, thus
Change air outlet angle, uses maneuverability.
Preferably, the top surface of the isolation raised line is equipped with seal groove, sealing strip is equipped in the seal groove.Sealing strip rises
To sealing function, prevent from collaborating.
Preferably, the both ends in the connecting tube positioned at connector sleeve are equipped with end cap, end cap is fixedly connected with connecting tube,
Position-arresting disk is equipped in one of end cap, position-arresting disk is connected by the bottom of slide post and end cap, and the outer end face of position-arresting disk is equipped with
Limiting tooth, one end of the connector sleeve are equipped with the gear ring cooperated with limiting tooth, the bottom of the inner end of the position-arresting disk and end cap it
Between be equipped with pressure spring.It can be automatically positioned after connecting tube rotation any angle.
Preferably, the shell includes procapsid, back casing, the open end of the back casing is fastened on procapsid
Rear end surrounds the C-shaped runner between front housing and the rear housing, the rear end downside of the downside and procapsid of the back casing
Between form the jet gap.
Preferably, the open end of the hood is equipped with pod, the outlet side of the pod is equipped with distributary base, described
The center of distributary base is equipped with motor cabinet, and the motor is mounted in motor cabinet, and the impeller is fixed on the shaft end of motor, institute
The upside for stating distributary base is equipped with the upper tap hole being connected to upper runner, and the downside of the distributary base is equipped with to be connected to down with lower flow channel
Tap hole.
Preferably, the outside of the motor cabinet is equipped with several radiating fins.Radiating fin can enhance motor cabinet, motor
Heat dissipation performance.
Preferably, the open end of the hood is equipped with annular choke, the outside of the annular choke is equipped with evagination
Ring, the outer bulge loop and connecting tube clamping connect, and the outlet side of the pod is equipped with annular flanging, and the outer wall of pod is set
There is outer snap ring, the annular flanging, outer snap ring and annular choke are clamped；The clamping of the outlet side of the distributary base and pod
Connection.
Therefore, the present invention is with noise is small, can easily adjust the beneficial effect of air outlet angle.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
Fig. 2 is cross-sectional view at the middle A-A of Fig. 1.
Fig. 3 is partial enlargement diagram at B in Fig. 1.
Fig. 4 is the connection schematic diagram of connecting tube and connector sleeve
Fig. 5 is partial enlargement diagram at D in Fig. 2.
Fig. 6 is the schematic diagram of internal structure of connector sleeve, hood.
Fig. 7 is partial enlargement diagram at E in Fig. 6.
Fig. 8 is the structural schematic diagram of fluid dividing cover.
In figure: pedestal 1, shell 2, procapsid 200, back casing 201, connecting tube 3, upper cavity 30, lower chamber 31, upper elongated slot
Hole 32, lower long slot hole 33, upper limit raised line 34, lower limit raised line 35, C-shaped runner 4, Zuo Liudao 40, right runner 41, jet gap
5, first partition 6, second partition 7, connector sleeve 8, isolation raised line 80, upper runner 81, lower flow channel 82, sealing strip 83, gear ring 84, pressure
Spring 85, hood 9, annular choke 90, outer bulge loop 91, motor 10, impeller 11, air inlet 12, end cap 13, position-arresting disk 14, sliding
Column 15, limiting tooth 16, pod 17, annular flanging 170, outer snap ring 171, distributary base 18, motor cabinet 180, upper tap hole
181, lower tap hole 182, radiating fin 183.
Specific embodiment
Present invention will be further described below with reference to the accompanying drawings and specific embodiments:
A kind of noise abatement formula bladeless fan structure as shown in Figure 1, Figure 2, Figure 3 and Figure 4, including pedestal 1 and shell 2, shell 2
It is whole in C-shaped configuration, it is equipped with connecting tube 3 between the both ends of shell 2, C-shaped runner 4 is equipped in shell 2, is set at the inner wall of shell 2
There is a jet gap 5 being connected to C-shaped runner 4, the intermediate position of C-shaped runner 4 is equipped with first partition 6, and first partition 6 is by C-shaped stream
Road is separated into left runner 40, right runner 41, and second partition 7 is equipped in connecting tube 3, and second partition 7 divides the space in connecting tube 3
It is divided into upper cavity 30, lower chamber 31, the left end of upper cavity 30 is connected to left runner 40, the right end closing of upper cavity 31, lower chamber
31 right end is connected to right runner 41, the left end closing of lower chamber 31；The outside of connecting tube 3 is equipped with connector sleeve 8, in connector sleeve 8
It is equipped with isolation raised line 80 positioned at the left and right sides of connecting tube 3, raised line 80 is isolated by the space in connector sleeve 8 and is separated into upper runner
81, lower flow channel 82, the upside of connecting tube 3 are equipped with the upper long slot hole 32 for being connected to upper runner 81 Yu upper cavity 30, connecting tube 3
Downside is equipped with lower long slot hole 33 for being connected to lower flow channel 82 Yu lower chamber 31, and the right side of connecting tube 3 is equipped with hood 9, in hood 9
Equipped with motor 10, impeller 11, the rear end of hood 9 is equipped with several air inlets 12, upper runner 81, lower flow channel 82 right end and hood
9 connections.
As shown in figure 5, shell 2 includes procapsid 200, back casing 201, the open end of back casing 201 is fastened on procapsid
200 rear end, surrounds C-shaped runner 4 between procapsid 200 and back casing 201, behind the downside of back casing 201 and procapsid 200
End forms jet gap 5 between downside.
As shown in fig. 6, the top surface of isolation raised line 80 is cambered surface, the outer wall of connecting tube 3 is placed between two isolation raised lines 80
And around the cambered surface rotation of isolation raised line 80, the two sides that the outer wall of connecting tube 3 is located at upper long slot hole 32 are equipped with upper limit raised line 34,
The two sides that the outer wall of connecting tube 3 is located at lower long slot hole 33 are equipped with lower limit raised line 35；Convex 80 top surfaces are isolated and are equipped with seal groove,
Sealing strip 83 is equipped in seal groove；As shown in figure 4, the both ends in connecting tube 3 positioned at connector sleeve 8 are equipped with end cap 13, end cap 13
It is fixedly connected with connecting tube 3, position-arresting disk 14 is equipped in one of end cap 13, position-arresting disk 14 passes through slide post 15 and end cap 13
Bottom connection, the outer end face of position-arresting disk 14 are equipped with limiting tooth 16, and one end of connector sleeve 8 is equipped with the gear ring cooperated with limiting tooth 16
84, pressure spring 85 is equipped between the inner end of position-arresting disk 14 and the bottom of end cap 13.
As shown in Fig. 6, Fig. 7 and Fig. 8, the open end of hood 9 is equipped with pod 17, and the outlet side of pod 17, which is equipped with, to be shunted
The center of seat 18, distributary base 18 is equipped with motor cabinet 180, and motor 10 is mounted in motor cabinet 180, and impeller 11 is fixed on motor 10
Shaft end, the upside of distributary base 18 are equipped with the upper tap hole 181 being connected to upper runner 81, and the downside of distributary base 18 is equipped with and lower flow channel
The outside of the lower tap hole 182 of 82 connections, motor cabinet 180 is equipped with several radiating fins 183；The open end of hood 9 is equipped with annular
Choke 90, the outside of annular choke 90 are equipped with outer bulge loop 91, and outer bulge loop 91 is connected with the clamping of connecting tube 3, pod 17
Outlet side is equipped with annular flanging 170, and the outer wall of pod 17 is equipped with outer snap ring 171, annular flanging 170, outer snap ring 171 with
Annular choke 170 is clamped；The outlet side of distributary base 18 and pod 17, which is clamped, to be connected.
In conjunction with attached drawing, the principle of the present invention is as follows: in use, 10 impeller 11 of motor rotates, extraneous air is from tail
Cover 9 rear ends air inlet enter after, by the compression of impeller 11, air-flow is divided into two-way, upper road air-flow pass sequentially through upper runner 81,
It is sprayed after upper long slot hole 32, upper cavity 30, Zuo Liudao 40 from jet gap location, lower road air-flow passes sequentially through lower flow channel 82, lower length
It is sprayed from jet gap 5 after slot 33, lower chamber 31, right runner 41, so as to weaken mutual turbulent flow, the flow-disturbing between air-flow
Effect and bring noise, overall noise are smaller, be very suitable to nighttime sleep use；User can also adjust shell as needed
Angle, to change blowing angle.
The above is only specific embodiments of the present invention, but technical characteristic of the invention is not limited thereto.It is any with this hair
Based on bright, to solve essentially identical technical problem, essentially identical technical effect is realized, made simple change, etc.
With replacement or modification etc., all it is covered by among protection scope of the present invention.
Claims (8)
1. a kind of noise abatement formula bladeless fan structure, including pedestal and shell, characterized in that the shell is integrally in C-shaped configuration,
It is equipped with connecting tube between the both ends of shell, C-shaped runner is equipped in the shell, is equipped at the inner wall of shell and connects with C-shaped runner
The intermediate position in logical jet gap, C-shaped runner is equipped with first partition, and C-shaped runner is separated into left stream by the first partition
Road, right runner, are equipped with second partition in the connecting tube, the second partition by the space in connecting tube be separated into upper cavity,
Lower chamber, the left end of the upper cavity are connected to left runner, the right end closing of upper cavity, the right end of the lower chamber and right runner
Connection, the left end closing of lower chamber；The outside of the connecting tube is equipped with connector sleeve, and the left and right of connecting tube is located in the connector sleeve
Two sides are equipped with isolation raised line, and raised line is isolated by the space in connector sleeve and is separated into upper runner, lower flow channel, sets on the upside of connecting tube
There is the upper long slot hole for being connected to upper runner and upper cavity, the downside of the connecting tube is equipped with for being connected to lower flow channel and lower chamber
Lower long slot hole, the right side of the connecting tube is equipped with hood, is equipped with motor, impeller in the hood, the rear end of hood is equipped with
Several air inlets, upper runner, lower flow channel right end be connected to hood.
2. a kind of noise abatement formula bladeless fan structure according to claim 1, characterized in that the top surface of the isolation raised line is
Cambered surface, the outer wall of the connecting tube are placed in the cambered surface rotation between two isolation raised lines and around isolation raised line, the connecting tube
Outer wall be located at the two sides of upper long slot hole and be equipped with upper limit raised line, the outer wall of connecting tube is located at the two sides of lower long slot hole equipped with lower limit
Position raised line.
3. a kind of noise abatement formula bladeless fan structure according to claim 2, characterized in that the top surface of the isolation raised line is set
There is seal groove, is equipped with sealing strip in the seal groove.
4. a kind of noise abatement formula bladeless fan structure according to claim 2 or 3, characterized in that be located in the connecting tube
The both ends of connector sleeve are equipped with end cap, and end cap is fixedly connected with connecting tube, and position-arresting disk is equipped in one of end cap, and position-arresting disk is logical
The bottom for crossing slide post and end cap connects, and the outer end face of position-arresting disk is equipped with limiting tooth, and one end of the connector sleeve is equipped with and limit
The gear ring of tooth cooperation, is equipped with pressure spring between the inner end of the position-arresting disk and the bottom of end cap.
5. a kind of noise abatement formula bladeless fan structure according to claim 1, characterized in that the shell includes front housing
Body, back casing, the open end of the back casing are fastened on the rear end of procapsid, and the C is surrounded between front housing and the rear housing
The jet gap is formed between on the downside of shape runner, the downside of the back casing and the rear end of procapsid.
6. a kind of noise abatement formula bladeless fan structure according to claim 5, characterized in that the open end of the hood is equipped with
Pod, the outlet side of the pod are equipped with distributary base, and the center of the distributary base is equipped with motor cabinet, the motor installation
In motor cabinet, the impeller is fixed on the shaft end of motor, the upside of the distributary base be equipped be connected to upper runner upper point
Discharge orifice, the downside of the distributary base are equipped with the lower tap hole being connected to lower flow channel.
7. a kind of noise abatement formula bladeless fan structure according to claim 6, characterized in that the outside of the motor cabinet is equipped with
Several radiating fins.
8. a kind of noise abatement formula bladeless fan structure according to claim 6, characterized in that the open end of the hood is equipped with
Annular choke, the outside of the annular choke are equipped with outer bulge loop, and the outer bulge loop and connecting tube clamping connect, the water conservancy diversion
The outlet side of cover is equipped with annular flanging, and the outer wall of pod is equipped with outer snap ring, and the annular flanging, outer snap ring and annular contract
Oral area clamping；The clamping connection of the outlet side of the distributary base and pod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811379557.5A CN109185238B (en) | 2018-11-19 | 2018-11-19 | A kind of noise abatement formula bladeless fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811379557.5A CN109185238B (en) | 2018-11-19 | 2018-11-19 | A kind of noise abatement formula bladeless fan structure |
Publications (2)
| Publication Number | Publication Date |
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| CN109185238A CN109185238A (en) | 2019-01-11 |
| CN109185238B true CN109185238B (en) | 2019-08-23 |
Family
ID=64940112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811379557.5A Active CN109185238B (en) | 2018-11-19 | 2018-11-19 | A kind of noise abatement formula bladeless fan structure |
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| CN (1) | CN109185238B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112012958B (en) * | 2020-09-29 | 2022-09-06 | 博耐尔汽车电气***有限公司 | Fan impeller structure of air blower of automobile air conditioner |
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|---|---|---|---|---|
| CN201771875U (en) * | 2010-09-07 | 2011-03-23 | 李德正 | No-blade fan |
| CN202144777U (en) * | 2011-07-27 | 2012-02-15 | 王洋 | Refrigeration bladeless fan |
| EP2578889A1 (en) * | 2010-05-27 | 2013-04-10 | Dyson Technology Limited | Device for blowing air by means of narrow slit nozzle assembly |
| CN105041730A (en) * | 2012-12-11 | 2015-11-11 | 晋江市东亨工业设计有限公司 | Bladeless fan |
| CN207420827U (en) * | 2017-10-15 | 2018-05-29 | 应辉 | A kind of bladeless fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3843941B2 (en) * | 2002-12-25 | 2006-11-08 | 株式会社デンソー | Centrifugal blower |
-
2018
- 2018-11-19 CN CN201811379557.5A patent/CN109185238B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2578889A1 (en) * | 2010-05-27 | 2013-04-10 | Dyson Technology Limited | Device for blowing air by means of narrow slit nozzle assembly |
| CN201771875U (en) * | 2010-09-07 | 2011-03-23 | 李德正 | No-blade fan |
| CN202144777U (en) * | 2011-07-27 | 2012-02-15 | 王洋 | Refrigeration bladeless fan |
| CN105041730A (en) * | 2012-12-11 | 2015-11-11 | 晋江市东亨工业设计有限公司 | Bladeless fan |
| CN207420827U (en) * | 2017-10-15 | 2018-05-29 | 应辉 | A kind of bladeless fan |
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| CN109185238A (en) | 2019-01-11 |
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